Some of these points remove the amount of work the CPU is required to do to successfully execute commands on the GPU. This can lead to overall performance gain because the CPU can then be used to compute other tasks.

According to Apple, more than 148,000 applications use Metal directly, and 1.7 million use it through high-level frameworks, as of June 2017.[7]
Presumably, most of these are applications and games on iOS. Notable macOS games using Metal for rendering are listed below.